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238512925 = 5271362931
BaseRepresentation
bin11100011011101…
…10101100011101
3121121210201020001
432031312230131
5442024403200
635400054301
75624216650
oct1615665435
9547721201
10238512925
111126a8322
1267a64391
133a550011
1423969897
1515e1576a
hexe376b1d

238512925 has 12 divisors (see below), whose sum is σ = 338007136. Its totient is φ = 163551600.

The previous prime is 238512917. The next prime is 238512979. The reversal of 238512925 is 529215832.

It is not a de Polignac number, because 238512925 - 23 = 238512917 is a prime.

It is a hoax number, since the sum of its digits (37) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 681291 + ... + 681640.

Almost surely, 2238512925 is an apocalyptic number.

238512925 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

238512925 is a deficient number, since it is larger than the sum of its proper divisors (99494211).

238512925 is a wasteful number, since it uses less digits than its factorization.

238512925 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1362948 (or 1362943 counting only the distinct ones).

The product of its digits is 43200, while the sum is 37.

The square root of 238512925 is about 15443.8636681369. The cubic root of 238512925 is about 620.1603166764.

The spelling of 238512925 in words is "two hundred thirty-eight million, five hundred twelve thousand, nine hundred twenty-five".

Divisors: 1 5 7 25 35 175 1362931 6814655 9540517 34073275 47702585 238512925